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    <title>社交</title>
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    <ul>
        <li><a href="index.html" target="_blank">主页</a></li>
        <li><a href="pictures.html" target="_blank">图片</a></li>
        <li><a href="projects.html" target="_blank">项目</a></li>
        <li>Social</li>
    </ul>
    <h1>social是什么意思？</h1>
    <p>谁能解释一下，社会的、社交的、群居。优点无法理解</p>
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